204656624603401 has 4 divisors (see below), whose sum is σ = 204656662882432. Its totient is φ = 204656586324372.

The previous prime is 204656624603399. The next prime is 204656624603419. The reversal of 204656624603401 is 104306426656402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204656624603401 - 2¹ = 204656624603399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204656624603491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9502341 + ... + 22351906.

It is an arithmetic number, because the mean of its divisors is an integer number (51164165720608).

Almost surely, 2^{204656624603401} is an apocalyptic number.

It is an amenable number.

204656624603401 is a deficient number, since it is larger than the sum of its proper divisors (38279031).

204656624603401 is an equidigital number, since it uses as much as digits as its factorization.

204656624603401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38279030.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 204656624603401 in words is "two hundred four trillion, six hundred fifty-six billion, six hundred twenty-four million, six hundred three thousand, four hundred one".